On 28/05/2026 at 02:11, Daniel S Reslink wrote:
I am seeing an on Windows an 11 MB partition unallocated followed by 4 MB esp and a final unallocated partition with apparently no data on it.
There is no such "unallocated partition" is nonsense. What you see is unallocated *space* outside of any partitions.
Debian ISO images have a spacial "hybrid" layout suitable for either an optical disc or a regular drive (USB flash drive, hard disk drive, SSD, memory card...). The ISO 9660 filesystem partition starts at sector 0 and overlaps the partition table and the 4MB EFI system partition. This layout can be considered invalid by some operating systems and disk tools such as gparted. You can see the partition table with util-linux fdisk. bklid shows the ISO 9660 volume label.
